Shutter-worker



2 Sheets--Sheet 1.

HMT. DICKERSON y Shutter-Worker. No.226,045 y Patented Mar.. 30 1880.

fgz

f 2 Sheets-'Sheet 2.Y 5.a. DIGKBRSON.

lShutter-Werker. ,Y No. 226,045 Patented lVlar. 30,1880.

H. PETERS, PHO'I'O-LITHDGMPHER, WASHlNGTDN. D. C.

UNITED STATES HENRY J. DIOKERSON, OF APPLE'ION, WISCONSIN.

SHUTTER-WORKER.

SPECIFICATION forming part of Letters Patent No. 226,045, dated March30, 1880.

Application tiled July 9, 1879.

To all 'whom it may concern:

Be it known that I, HENRY J. DrcKERsoN, of Appleton, in the county ofOutagamie and State of Visconsin, have invented certain newV and usefulImprovements in Combined Shutter and Blind-Slat Operators; and I herebydeclare that the following is a full, clear, and exact description ofthe same, reference being made to the accompanying drawings, in which-Figure l. is a bottom view of the cap C. Fig. is a plan view of theblind-slat-operating device. Fig. 3 is the shaft and chain and theirconnection. Fig. 4 is a modified form of the locking device employed.Fig. 5 is a horizontal section through the window-casing, show inginterior of cap C. Fig. 6 is a plan view of hinge B. Fig. 7 is anelevation of the casing and blind.; and Figs. 8 and 9 show the preferredforni of locking mechanism.

Like letters represent the same parts.

The window-casing is represented by a, the blind by I), the blindslatsby c, and the rod connecting such slats by d. These parts may be of anyconvenient construction. rIhe upper hinge, which connects the casing tothe blind, may be of ordinary construction. The lower hinge is composedof two parts, A B, the part A being attached to the casing and the partB to the blind. The portion A is made in two parts, C D, placed togetherand screwed to the window-frame. rlhe upper portion consists of anoutwardly-projecti ng hollow cap, and a projection from the partB,having a central opening, partly lls the said cap, leaving sufficientspace, however, for the easy play therein ofthe chain X, which iscomposed of fiat links riveted together, as shown in Fig. 3. Theprojection D has a spindle, Awhich passes through the central opening inthe cap Gand forms a bearing-surface for the movable hinge B to turn on.The end of the chain is formed with a round link or ring, which isplaced over the projecting stud on the movable plate B.

It is evident that the movement of the chain will cause an axialmovement of the hinge B on the spindle and will swing the blind.

A square mortise is eut entirely through the casing of the window, andin such mortise is placed the square shaft H, one end of the shaft beingconnected to the chain X and the l other passing through to the interiorof t-he house, where itis provided with a suitable knob. The shaft maythus be pushed in and out, and the blind is operated by such movement.

It is desirable in devices of this class that means be provided for notonly locking the blind when open or closed, but for adjusting itsposition when partly open. The means of adjustment employed by meconsist of acam, O, through which the shaft- H passes, as shown in Fig.l2, which is provided with an elliptical slot, in which works aneccentric, P, operated by a thumb-lever. A motion of the eccentric ineither direction will move the cam and hence rotate the shaft slightly.The frietional contact of the cam with the square shaft is sufficient tohold it against motion, and the locking device may be applied in anyposition of the blind.

A modified form of vthis locking device is shown in Fig. 4, differingfrom that already described only in the form of cam and eccentric. Incases where greater strength is required in the locking device I mayemploy a double friction-cam, the two pawls of which act simultaneously;but usually the single cam described will be sufficient for all ordinarypurposes.

rJhe blind-slat operator is shown in Fig. 2. It consists of a forkedlever, K, attached at one end in any suitable manner to the slat-rod cl.lt is pivoted to the forked plate t' on the blind,

' and when such blind is closed passes through Having thus described myinvention, what I claim, and desire to secure by Letters Patent of theUnited States, is

1. In a shutterworker, the combination, with the square shaft H, of thecam and eccentric for locking such shaft, substantially as described andshown.

2. In a shutter-worker and blind-Slat opera- IOO tor, the combination ofthe forked lever K, the shaft H, and the cam 4and eccentric,substantially as and for the purposes set forth.

3. In a shutter-Worker, a locking device 5 consisting of a cam throughwhich the operating rod or shaft passes, in combination with a pivotedeccentric, whereby said shaft is locked by frictional contact with saidcam, as set forth.

1o 4. In a shutter-worker, the described hinge joint, consisting of thetwo-part plate A, fixed to the Window-casing and having the upperprojecting cap, C, lower projecting plate and spindle, and the plate Bon the blind, having a 15 projecting plate provided with a centralopening through which said spindle passes, all substantially asdescribed and shown.

5. The described hinge-joint, in combination with the chain and squareshaft, as and for the purposes set forth. 2o

6. The shutter-Worker and blind-Slat opera' tor described, consisting ofthe hinge-joint A B, chain X, shaft H, cam O, eccentric P, and forkedlever K, all constructed and arranged substantially as described andshown.

HENRY J. DICKERSON.

Witnesses:

J. S. BUCK, J. N. HEATH.

